In ragu dasa moon bhukti is the last bhukti. According to virutcha shastra, one has to plant devatharu maram (cedruss deodara) to avoid the ill effects of ragu. It is called தேவ தரு in tamil.
one day before the day of plantation, little bit of yellow lentils should be immersed in water. The plant should be planted on the morning of first tuesday of ragu dasa mars bhukti period in temple garden.After plantation yellow lentil water should be given to the plant. The yellow lentils should be given to goat or cow.